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| author | Andrea Paterniani <a.paterniani@swapp-eng.it> | 2007-02-12 00:52:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-12 09:48:30 -0800 |
| commit | 69c202afa8ad6d6c1c673d8f9d47b43a0a3604e5 (patch) | |
| tree | a8f79c7911042c3cbc1b71e49e51f0c7ebf8055e /drivers/spi/Kconfig | |
| parent | fdb3c18d639311287dc4675abe743847a1aa62a8 (diff) | |
| download | op-kernel-dev-69c202afa8ad6d6c1c673d8f9d47b43a0a3604e5.zip op-kernel-dev-69c202afa8ad6d6c1c673d8f9d47b43a0a3604e5.tar.gz | |
[PATCH] SPI: Freescale iMX SPI controller driver (BIS+)
Add the SPI controller driver for Freescale i.MX(S/L/1).
Main features summary:
> Per chip setup via board specific code and/or protocol driver.
> Per transfer setup.
> PIO transfers.
> DMA transfers.
> Managing of NULL tx / rx buffer for rd only / wr only transfers.
This patch replace patch-2.6.20-rc4-spi_imx with the following changes:
> Few cosmetic changes.
> Function map_dma_buffers now return 0 for success and -1 for failure.
> Solved a bug inside spi_imx_probe function (wrong error path).
> Solved a bug inside setup function (bad undo setup for max_speed_hz).
> For read-only transfers, always write zero bytes.
This is almost the same as the 'BIS' version sent by Andrea, except for
updating the 'DUMMY' byte so that read-only transfers shift out zeroes.
That part of the API changed recently, since some half duplex peripheral
chips require that semantic.
Signed-off-by: Andrea Paterniani <a.paterniani@swapp-eng.it>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 2a2f44d..b217a65 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -75,6 +75,13 @@ config SPI_BUTTERFLY inexpensive battery powered microcontroller evaluation board. This same cable can be used to flash new firmware. +config SPI_IMX + tristate "Freescale iMX SPI controller" + depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL + help + This enables using the Freescale iMX SPI controller in master + mode. + config SPI_MPC83xx tristate "Freescale MPC83xx SPI controller" depends on SPI_MASTER && PPC_83xx && EXPERIMENTAL @@ -94,6 +101,7 @@ config SPI_OMAP_UWIRE help This hooks up to the MicroWire controller on OMAP1 chips. + config SPI_PXA2XX tristate "PXA2xx SSP SPI master" depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL |
